My DD is 4 and is in 3K at our local Lutheran school. We just joined the church this December from a Catholic church and are really enjoying it. I would consider our family to be middle of the road religious--meaning we try to go to church every other week, enroll our DD in Sunday school every other week, and then help out with maybe one or two committees a year.
I have heard through the grapevine that our Lutheran school is only beginning to increase tuition each and every year. Our town's school district is one of the best in the state, and it's FREE since it's public. The only problem with the district is that although the schools are all new, it's starting to get overcrowded so there's a referrendum this Spring to build a new one.
I have heard that the Lutheran school is getting crowded too, so there really is no difference in class size between the public vs. private.
I am torn; I would love to send DD to a FREE public school as I went to public and it turned out great, but I also feel that I may be missing something if I take her out of the Lutheran school. I guess that when we do attend church and we see the other children at the service attending school there, I may feel that I am envious that they get their education there. (That sounds really weird typing it out..)
I guess I want the best opportunity for my child. The public district exceeds expectations and I honestly do not have data on how the private Lutheran school does since it does not need to publish stuff like that besides SAT/ACT scores.
All I know is that if DD does go to a public school, we will be more comfortable financially and can really continue to contribute to her college savings and get ahead on retirement.